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jorefuo Quantitative Analysis & Machine Learning
Dublin, IE
Services - jorefuo

Quantitative methods
taught with actual rigour

Covers the techniques that practitioners use daily - statistical modelling, supervised learning pipelines, and the uncomfortable edge cases that textbooks skip. Designed for people who already know that data rarely behaves the way the tutorial assumed it would.

6 Learning tracks
Founded 2021 Dublin, Ireland
ML + Stats Core disciplines
Quantitative analysis workspace with data visualisations and model outputs
What we offer

Six tracks, each with a
distinct purpose

Each track addresses a specific gap - not a vague skill category. Participants work through real datasets, broken code, and decisions where the correct answer genuinely depends on context.

Statistical Inference for Analysts

Covers hypothesis testing, confidence intervals, and the assumptions that quietly invalidate results when ignored. Participants build intuition for p-values by breaking them deliberately - running underpowered tests, violating normality, and observing what actually changes in the output.

Foundations

Supervised Learning in Practice

Moves past accuracy scores into the decisions that actually matter: choosing loss functions for imbalanced targets, diagnosing leakage in time-series splits, and deciding when a simpler model is the correct one. Uses scikit-learn and real tabular datasets throughout.

Machine Learning

Time Series Analysis

Addresses stationarity, seasonal decomposition, and the persistent confusion between autocorrelation and causation. Participants fit ARIMA models to messy real-world sequences and learn to interpret residuals rather than just report RMSE.

Forecasting

Feature Engineering and Selection

Teaches encoding strategies for high-cardinality categoricals, interaction terms, and the difference between filter methods and embedded regularisation. The track includes a section on what to do when domain knowledge contradicts the feature importance scores.

Data Prep

Model Evaluation and Calibration

Examines ROC curves, calibration plots, and the cases where a well-calibrated model is more useful than a high-AUC one. Participants learn to communicate model limitations clearly - a skill that turns out to matter more than the model itself in most production contexts.

Evaluation

Bayesian Reasoning for Practitioners

Introduces prior specification, posterior updating, and credible intervals without requiring a statistics PhD as a prerequisite. Covers PyMC for applied modelling and spends considerable time on prior sensitivity - because the choice of prior is rarely as neutral as it appears.

Advanced

Questions about which
track fits your situation

Each track has defined prerequisites listed on the learning programme page. If the description sounds right but the prerequisites look uncertain, reach out - the honest answer is usually more useful than a sales conversation.